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3 years ago

If y=3x+2,find the value of y when x=-3

2 answers:

8 0

Y = 2x + 5 this is a hard question but ALWAYS REMEMBER UNITS and youll get it it sometimes take a little while but i can do them in my head now took me 1 year to do it in my head dont give up :) i believe in u

Mars2501 [29]3 years ago

6 0

Y=3x+2 when x=-3
=> y= 3(-3)+2 = -9+2 =-7

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Brainliest to correct quickly plz

fiasKO [112]

Answer:

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2 years ago

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Answer:

Step-by-step explanation:

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2 years ago

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Zolol [24]

Answer:

Exact value of Cos(45° - 60°) is 0.96 using difference of two angles.

Step-by-step explanation:

Given:

Cos(45° - 60°)

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Formula:

$cos(a-b)=cos(a)\ cos(b)+sin(a)\ sin(b)$

Plugging the values.

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We know that the values :

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⇒ $cos(45-60)=\frac{2\sqrt{2} +2\sqrt{6} }{ 8}$

⇒ $cos(45-60)=\frac{2(\sqrt{2}+\sqrt{6})}{8}$ ...taking 2 as a common factor

⇒ $cos(45-60)=\frac{(\sqrt{2}+\sqrt{6})}{4}$

To find the exact values we have to put the values of sq-rt .

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